Expression of Cry2 in the Chicken Pineal Gland Effects of Changes in Light-Dark Conditions

被引：2

作者：

Nagy, Andras D. ^{[1
]}

Seomangal, Karishma ^{[1
]}

Kommedal, Siri ^{[1
]}

Csernus, Valer J. ^{[1
]}

机构：

[1] Univ Pecs, Dept Anat, Sch Med, H-7624 Pecs, Hungary

来源：

TRENDS IN COMPARATIVE ENDOCRINOLOGY AND NEUROBIOLOGY | 2009年 / 1163卷

基金：

英国医学研究理事会;

关键词：

circadian rhythms; Cry2; pineal gland; chicken; light; CLOCK GENE-EXPRESSION;

D O I：

10.1111/j.1749-6632.2008.03640.x

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Pineal expression of Cry2 mRNA has been examined in chickens under normal (LD) and reversed (DL) light-dark conditions. In vivo the peak of Cry2 mRNA content at late subjective day under LD diminished after switching to a DL schedule. In vitro, Cry2 mRNA levels showed a steady decrease during light exposure at subjective night. Our data show that light-sensitive clock components in the pinealocytes may be involved in the repression of Cry2 transcription at night, which may contribute to resetting the phase of the clock within 24 h.

引用

页码：488 / 490

页数：3

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